| // Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion The grammar is: |
| /// |
| /// // Existing rules: |
| /// type ::= functionType '?'? // Existing production. |
| /// | recordType // New production. |
| /// | typeNotFunction // Existing production. |
| /// |
| /// typeNotFunction ::= 'void' // Existing production. |
| /// | recordType // New production. |
| /// | typeNotVoidNotFunction // Existing production. |
| /// |
| /// // New rules: |
| /// recordType ::= '(' recordTypeFields ',' recordTypeNamedFields ')' |
| /// | '(' recordTypeFields ','? ')' |
| /// | '(' recordTypeNamedFields ')' |
| /// |
| /// recordTypeFields ::= recordTypeField ( ',' recordTypeField )* |
| /// recordTypeField ::= metadata type identifier? |
| /// |
| /// recordTypeNamedFields ::= '{' recordTypeNamedField |
| /// ( ',' recordTypeNamedField )* ','? '}' |
| /// recordTypeNamedField ::= type identifier |
| /// recordTypeNamedField ::= metadata typedIdentifier |
| /// |
| /// The grammar is exactly the same as parameterTypeList in function types but |
| /// without `()`, `required`, and optional positional parameters since those |
| /// don't apply to record types. A record type can't appear in an extends, |
| /// implements, with, or mixin on clause, which is enforced by being a |
| /// production in `type` and not `typeNotVoid`. |
| /// |
| /// The type () is the type of an empty record with no fields |
| /// |
| /// @description Checks that it is a compile-time error if record type |
| /// annotation has an optional positional parameter |
| /// @author sgrekhov22@gmail.com |
| |
| typedef R1 = ([int? i, String? s]); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| typedef ([int? i, String? s]) R2(); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| typedef void R3(([int? i, String? s]) r); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| ([int? i, String? s]) foo() => (42, ""); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| void bar(([int i, String s]) r) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() { |
| ([int i, String s]) r1 = (42, ""); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| (bool b, double d, [int i, String s]) r2 = (true, 1.1, 42, ""); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
